Two researchers from Nagoya University and the University of Toyama find scale-eating fish have a naturally stronger side for attacking prey fish, and learn to use the dominant side through experience.

Researchers at Nagoya University have identified a molecule that enables cell appendages called cilia to beat in a coordinated way to drive the flow of fluid around the brain; this prevents the accumulation of this fluid, which otherwise leads to swelling of the head as found in the condition hydrocephalus.